氮磷硼共掺杂木质素酚醛泡沫及其阻燃性能研究  

Study on nitrogen,phosphorus and boron co-doped lignin phenolic foam and its flame retardancy

作　　者：楚红英[1,2] 李华北 黄帅[1,2] 姚新鼎 CHU Hong-ying;LI Hua-bei;HUANG Shuai;YAO Xin-ding(Department of Enviroment Engineering,Yellow River Conservancy Technical Institute,Kaifeng 475004,China;Henan Engineering Technology Research Center of Green Coating Materials,Kaifeng 475004,China)

机构地区：[1]黄河水利职业技术学院环境工程学院,河南开封475004 [2]河南省绿色涂层材料工程技术研究中心,河南开封475004

出　　处：《热固性树脂》2023年第6期1-8,共8页Thermosetting Resin

基　　金：河南省高等学校重点科研项目计划(22B150008);河南省重大科技专项项目(221100320200)。

摘　　要：采用氮、磷、硼三种阻燃元素共掺杂木质素基酚醛泡沫,通过扫描电镜、热重、锥形量热、拉曼光谱和X射线能谱等分析方法研究了泡沫的形态、性能及阻燃机理。结果表明,与木质素基酚醛泡沫(LPF)相比,添加树脂质量10%的含有氮、磷、硼复合阻燃剂的木质素基酚醛泡沫(NPBLPF)900℃的残炭率达到60.53%,提高了47.20%。总烟释放量和总释放热分别为110.6 m^(2)/m^(2)和10.3 MJ/m^(2),分别降低了41.14%和64.85%。泡沫残炭表面的磷化合物炭层和硼化合物形成的玻璃态共同提高了残炭的石墨化程度,这是泡沫阻燃性得到提高的主要原因。The lignin based phenolic foam was co-doped with nitrogen,phosphorus and boron as flame retardants.The morphology,properties and flame retardancy mechanism of foam were studied by scanning electron microscopy,thermogravimetry,cone calorimetry,Raman spectroscopy and X-ray energy dispersive spectroscopy.The results showed that compared with lignin based phenolic foam(LPF),the char yield of lignin based phenolic foam(NPBLPF)with 10%of resin mass containing nitrogen,phosphorus and boron composite flame retardant reached to 60.53%at 900℃,increased by 47.20%.The total smoke release and total heat release were 110.6 m^(2)/m^(2) and 10.3 MJ/m^(2),respectively,and decreased by 41.14%and 64.85%,respectively.The graphitization degree of foam residue char was improved by the phosphorus compound and the glassy state formed by boron compound on the surface of foam residue char,which was the main reason for the improvement of flame retardancy of foam.

关 键 词：酚醛泡沫 木质素 氮 磷 硼 耐热性 协同阻燃 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]